The Danvest Power Box® is a container or canopy enclosure comprising a conventional diesel generator fitted with the unique Danvest system. Wind or solar systems simply connect. The Danvest low-load and fast response capability enables high direct fuel savings.

Danvest system features:

A conventional high speed 1500 / 1800 rpm genset.

A low-load unit (LLU) enabling the diesel engine to operate effectively under the 30% load threshold at a constant speed, with stable rotations, with clean combustion, with minimal soot formation and at low fuel consumption.

The ability to, boosted by surplus renewable energy, operate the generator in reverse power. The alternator then draws the diesel engine that then consumes only a few liter of fuel per hour or even zero fuel.

The ability to stop the engine by de-clutching it from the alternator when surplus renewable energy hits a set-point.* Fuel consumption is then zero. The alternator provides useful reactive power as it remains connected to the busbar.**

The ability to start, clutch in and accelerate fast as the diesel engine starts disconnected, is preheated and is pre-pressurized.

The ability to accelerate fast to needed load without losing frequency control, voltage and reactive power.

A conventional diesel generator PLC controlling the frequency and voltage from zero to 100% load.

A reliable dumpload controller to assist the genset during fast load variations and to secure load balance between fluctuating renewable energy and consumer load when the genset is in reverse operation or when engine is clutched out.

The ability to control renewable energy capacities that exceed nominal genset capacity.

The ability to combine wind and solar systems with the frequency at the busbar as reference.

The ability to increase renewable capacity later on.

A stable power quality of 50 / 60 Hz +/- 0.5 Hz.

All diesel engine factory warranties apply.

A simple, robust and reliable design.

A design lifetime of up to 20 years.

SCADA / VPN monitoring.

Danvest offers a complete hybrid power solution including integration equipment, busbar, switch gear and master controlling that is ready for plug and play with wind and solar.

Standard components & maintenance

Danvest uses widely available standard components for all the important functions, resulting in a simple and reliable design. After a short training, local operators are able to operate the Danvest system that functions like a conventional genset.

Maintenance & Repair is executed by existing global diesel engine service networks. Danvest centrally monitors all of its operations.

Danvest Power Boxes

Danvest offers rated capacities between 100 and 1.800 kWe per container. When feasible, Danvest Power Boxes can modularly be extended to about 25 MW per site.

The 'Single line' has the generator + control room in one container. The 'Multi line' offers generators and control room in separate containers to allow for larger capacities. Dumpload systems above 400 kW are always in a separate container.

The 'Compact-series' offers a cost-efficient range in a canopy enclosure (no clutch). The dumpload is in a separate enclosure. This series is only suitable for solar-diesel plants.

A Danvest plant can also operate in combination with conventional 'medium speed' gensets. The Danvest hybrid controller will then START/STOP these gensets.

Earn back capacity

Danvest provides 50 to 70% direct fuel savings per year with wind and 30 to 40% direct fuel savings per year with solar systems.*** When combining wind and solar systems, direct fuel savings can be as high as 80% per year.

Danvest makes hybrid projects perform to their absolute maximum by making minimal use of diesel. Project investment recovery periods are 3 to 6 years (incl. CAPEX of wind / solar) and tons of CO2 emissions will be avoided.

As an option, energy storage systems can be added to shift load to create "indirect" fuel savings. Danvest's smart operation will improve battery life and battery operation.

Our engineers will integrate wind/solar and possible energy storage in the overall design and will consider any site-specific requirements. Danvest can also be integrated with (existing) LFO/HFO power plants.

* The Compact-series does not carry a clutch** The alternator spins 24/7 all year round*** These fuel savings increase when demand is mainly during the day

Danvest is a production company with a Danish
heritage. The Danvest Power Box® makes wind
diesel and solar-diesel projects save fuel to the
max. All project stakeholders benefit from this.
Danvest works on things that matter.